Gas and air mixer for gas-engines.



No. 770,212. PATENTED SEPT, 13, 1904.

- M. F. BATES.

GAS AND AIR MIXER FOR GAS ENGINES.

APPLICATION FILED JUNE 14, 1902.

N0 MODEL.

WIT 555s W I #M Attorneys.

UNITED STATES Patented September 13, 1904.

PATENT OFFICE.

MADISON F. BATES, OF LANSING, MICHIGAN, ASSIGNOR TO BATES & EDMONDSMOTOR 00., OF LANSING, MICHIGAN.

GAS AND AIR MIXER FOR GAS-ENGINES- SPECIFICATION forming part of LettersPatent No. 770,212, dated September 13, 1904.

Application filed June 1 1, 1902. Serial No- 111,6l3. (No model.)

To all whom, it may concern:

Be it known that I, MADISON F. BATES, a citizen of the United States,residing at Lansing, county of Ingham, State of Michigan, have inventeda certain new and useful Improvement in Gas and Air Mixers forGas-Engines; and I declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it pertains to make and use the same, reference being hadto the accompanying drawings, which form a part of this specification.

My invention relates to gas and air mixers for gas-engines; and itconsists in the improvements hereinafter described, and pointed out inthe claims.

Referring to the accompanying drawings, Figure 1 is a longitudinalcentral section of a device embodying my invention. Fig. 2 is anelevation of the same looking from the right of Fig. 1.

A is a casting having a cavity formed therein forming an inclosedchamber with an exitpassage B leading therefrom and an inductionpassageC. The passage B is provided with internal screw-threads, so that it maybe connected with the induction-port of a gas-engine.

An opening G of sufiicient area to permit of the passage of a valve Ftherethrough is formed at the top-of the casting A and is provided withinternal screw-threads.

G is a screw-threaded plug adapted to close the passage G, its threadengaging in the threads of said passage.

D is a cylindrical lug rising from the bottom of the casting A to aboutthe center of the cavity in said casting. A cylindrical hole is formedthrough the lug D, forming a passage into the cavity in the casting A.The aperture through the lug D is axially in line with the opening G.

E is the gas-supply pipe, and it communicates with the passage throughthe lug D. The upper end of the lug D is faced off to form a valve-seat,and a valve F is fitted thereto, guided by its stem, extending into theaperture through the lug D.

The periphery of the disk of the valve F extends beyond the periphery ofthe lug D,

as shown in Fig. 1. The induction-passage O is located below the valveF, and the exitpassage B is located above said valve.

O is a gridiron valve by which the area of the opening ofinduction-passage C may be adjusted. The plug G has adownwardly-extending projection g, which ends just above the valve F. Byturning the plug G the height of the end of the lug g above the valve Fmay be regulated. The lug 9 serves to limit the lift of the valve F.

H is a spring secured to the castingA and adapted to press against themilled periphery of the plug G, so as to prevent the accidental turningof said plug and so as to hold said plug in the position to which it isadjusted.

The operation of the above-described device is as follows: The casting Ais connected substantially air-tight to the intake of the gas-engine, sothat the charge for the engine will be drawn through said casting by wayof the passage B. When the engine is started, the area of theinduction-passage C is considerably contracted by means of the valve C,so that the vacuum formed in the cavity of the casting A will cause thevalve F to rise and admit considerable gas through the pipe E, so that arich mixture will be formed to start the engine. When the engine is inmotion, the valve O is turned to allow a larger area through theinduction-passage C. Air is drawn through said passage and passesacrossthe cavity in the casting A in an inclined upward direction.pressing under the area of the disk of the valve F, which extends beyondthe lug D, and raising or helping to raise the valve F to open thepassage for the gas. The height to which the valve F may rise is limitedby its striking against the lower end of the lug g. The gas-passage maybe also used as a conduit for gasolene.

What I claim isr 1. The combination of an inclosed chamber, agas-passage extending thereinto, a valve-seat intermediate the gas inletand outlet passage, its upper extremity beinghigher than theinlet-opening, a valve-disk whose outer edge extends beyond saidvalve-seat and whose stem engages loosely therein, and an outlet-passageabove said valve-disk, the area of the passagespace above said valvediskbeing greater than that of the inlet-passage.

2. The combination of an inclosed chamber, a gas-passage extendingthereinto near the bottom thereof, an outlet-port on the opposite sidethereof and near the top thereof, means for controlling and regulatingthe flow through said inlet-port, a raised valve-seat intermediate theinlet and outlet openings, the area of the passage past its crowningdisk being greater than the inlet-passage, a valve-disk resting on thetop and extending past the outer edge thereof, and means for regulatingthe size of the passage past said valve-disk, substantially asdescribed.

3. The combination of an inclosed chamber, a gas-passage extendingthereinto near the base thereof, an outlet-passage in the opposite sidethereof near its top, a raised valve seat intermediate the tWo openingshaving an opening central thereto and to the containingchamber, avalve-disk resting upon the upper extremity thereof, itsedgesextendingbeyond MADISON F BATES.

Witnesses:

J. EDWARD Ron, H. T. CAMPBELL.

